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Solve: sqrt(x + 5) + sqrt(x + 21) = sqrt...

Solve: `sqrt(x + 5) + sqrt(x + 21) = sqrt(6x + 40)`

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The correct Answer is:
`therefore x = (-14)/(3) ` is not a root .
` therefore ` The only root is 4 .
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SURA PUBLICATION-SURAS MODAL QUESTION PAPER-1 MATHEMATICS -Section-IV
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  2. If cos (alpha - beta) + cos (beta - gamma) + cos (gamma - alpha) = (-3...

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  3. By the principle of mathematical induction , prove that for n ge 1

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  4. By the principle of mathematical induction, prove that, for nge1 1^(3)...

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  5. Find the sum up to the 17^(th) term of the series (1^3)/(1) + (1^3 + 2...

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  6. A ray of light coming from the point (1,2) is reflected at a point A o...

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  7. Solve |(4-x,4+x,4+x),(4+x,4-x,4+x),(4+x,4+x,4-x)|=0

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  8. Show that the vectors are coplanar hat(i)-2hat(j)+3hat(k),-2hat(i)+...

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  9. Show that the following vectors are co-planar (ii) 5hati+6hatj+7hatk,7...

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  10. Examine the continuity of the following : x + sinx

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  11. Examine the continuity of the following: x^2 cos x

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  12. Examine the continuity of the following: e^x tan x

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  13. Examine the continuity of the following: e^(2x)+x^2

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  14. Examine the continuity of the following: x. ln x

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  15. Find the derivative with tan^(-1) ((sinx )/(1 + cos x)) with respect t...

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  16. (1)/(sqrt(x+3)-sqrt(x-4))

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  17. A firm manufactures PVC pipes in three plants viz, X,Y and Z. The dail...

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  18. A firm manufactures PVC pipes in three plants viz, X ,Y and Z . The de...

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  19. Evaluate int (x^(2) + 5x + 3)/(x^(2) + 3x + 2) dx

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  20. Solve: sqrt(x + 5) + sqrt(x + 21) = sqrt(6x + 40)

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